21693485

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1559}}^1$

素因数の和:1609

約数の個数: 24

約数和(自身を含む): 29877120

約数和(自身を除く): 8183635

約数列:

[1, 5, 11, 23, 55, 115, 121, 253, 605, 1265, 1559, 2783, 7795, 13915, 17149, 35857, 85745, 179285, 188639, 394427, 943195, 1972135, 4338697, 21693485]

約数ペア:

[(1, 21693485), (5, 4338697), (11, 1972135), (23, 943195), (55, 394427), (115, 188639), (121, 179285), (253, 85745), (605, 35857), (1265, 17149), (1559, 13915), (2783, 7795)]